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Variable declared in for-loop is local variable?
...uter i by a different name.
N.B:
Please note, C#'s scoping rules differ from C++'s scoping rules. In C++ variables are only in scope from where they are declared until the end of the block. Which would make your code a valid construct in C++.
...
How should equals and hashcode be implemented when using JPA and Hibernate
...ve an id and thus you're using hashCode() based on that id. It's different from above and would have placed your entity in the bucket #2. Now, assuming you hold a reference to this entity elsewhere, try calling Set.contains(entity) and you'll get back false. Same goes for get() / put() / etc...
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Autoreload of modules in IPython [duplicate]
...hon
In [1]: %load_ext autoreload
In [2]: %autoreload 2
In [3]: from foo import some_function
In [4]: some_function()
Out[4]: 42
In [5]: # open foo.py in an editor and change some_function to return 43
In [6]: some_function()
Out[6]: 43
The module was reloaded without r...
From an array of objects, extract value of a property as array
... a result, the following two lines are equivalent to the code sample above from pre-Lodash 4.
var result = _.map(objArray, 'foo');
var result = _.map(objArray, _.property('foo'));
_.property(), and hence _.map(), also allow you to provide a dot-separated string or array in order to access sub-pro...
How do I get extra data from intent on Android?
How can I send data from one activity (intent) to another?
16 Answers
16
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What is reflection and why is it useful?
...methods which are marked or work in a certain way is still common.
Update from a comment:
The ability to inspect the code in the system and see object types is
not reflection, but rather Type Introspection. Reflection is then the
ability to make modifications at runtime by making use of
i...
What is opinionated software?
...courages the designer into doing things their way.
Another example (taken from the signals link) is that of wiki. The designers of wiki had a lot of opinions. They thought HTML was too complicated for people to write, so they came up with what they felt was a more natural way to update content. The...
shortcut for creating a Map from a List in groovy?
...tMap{[it.value, it.key]} == [2:1, 4:3]
and here I use it to create a map from a list
[1,2].collectMap{[it,it]} == [1:1, 2:2]
now I just pop this into a class that gets called as my app is starting and this method is available throughout my code.
EDIT:
to add the method to all arrays...
Objec...
How do I get the RootViewController from a pushed controller?
So, I push a view controller from RootViewController like:
8 Answers
8
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CSS styling in Django forms
...
Taken from my answer to:
How to markup form fields with <div class='field_type'> in Django
class MyForm(forms.Form):
myfield = forms.CharField(widget=forms.TextInput(attrs={'class' : 'myfieldclass'}))
or
class MyForm(...